ABSTRACT The aim of this study was to determine the effect of electrocoagulation technology using iron electrodes on phenol removal in aqueous solutions. The removal of phenol was investigated in terms of various parameters, namely, current density, phenol and NaCl concentration, pH, and alginic acid concentration. The results showed that the removal efficiency of phenol increased with increasing the current density, pH and NaCl concentration, whereas it was inversely associated with initial concentration of phenol and alginic acid concentration. According to the results, electrocoagulation is a promising process for treatment of wastewater containing high concentration of phenol.
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M. Zazouli and M. Taghavi, "Phenol Removal from Aqueous Solutions by Electrocoagulation Technology Using Iron Electrodes:Effect of Some Variables," Journal of Water Resource and Protection, Vol. 4 No. 11, 2012, pp. 980-983. doi: 10.4236/jwarp.2012.411113.
 A. Bodalo, J. L. Gomez, M. Gomez, G. Leon, A. M. Hidalgo and M. A. Ruiz, “Phenol Removal from Water by Hybrid Processes: Study of the Membrane Process Step,” Desalination, Vol. 223, 2008, pp. 323-329.
 L. A. Rodriguesa, M. L. C. P. D. Silvab, M. O. Alvarez-Mendesc, A. D. R. Coutinhoc and G. P. Thima, “Phenol Removal from Aqueous Solution by Activated Carbon Produced from Avocado Kernel Seeds,” Chemical Engineering Journal, Vol. 174, 2011, pp. 49-57.
 M. Caetano, C. Valderrama, A. Farran and J. L. Cortina, “Phenol Removal from Aqueous Solution by Adsorption and Ion Exchange Mechanisms onto Polymeric Resins,” Journal of Colloid and Interface Science, Vol. 388, 2009, pp. 402-409. doi:10.1016/j.jcis.2009.06.062
 H. B. Senturka, D. Ozdesa, A. Gundogdua, C. Durana and M. Soylakb, “Removal of Phenol from Aqueous Solutions by Adsorption onto Organomodi?ed Tirebolu Bentonite: Equilibrium, Kinetic and Thermodynamic Study,” Journal of Hazardous Materials, Vol. 172, 2009, pp. 353-362. doi:10.1016/j.jhazmat.2009.07.019
 R. Aravindhan, J. R. Rao and B. U. Nair, “Application of a Chemically Modi?ed Green Macro Alga as a Biosorbent for Phenol Removal,” Journal of Environmental Management, Vol. 90, 2009, pp. 1877-1883.
 O. Abdelwahaba, N. K. Aminb and E.-S. Z. El-Ashtoukhy, “Electrochemical Removal of Phenol from Oil Re?nery Wastewater,” Journal of Hazardous Materials, Vol. 163, 2009, pp. 711-716. doi:10.1016/j.jhazmat.2008.07.016
 M. Saleem, A. A. Bukhari and M. N. Akram, “Electrocoagulation for the Treatment of Wastewater for Reuse in Irrigation and Plantation,” Journal of Basic and Applied Sciences, Vol. 7, No. 1, 2011, pp. 11-20.
 APHA, AWWA and WEF, “Standard Methods for the Examination of Water and Wastewater,” American Public Health Association American Water Work Association Water Environment Federation, 1999.
 Y. Yavuz and A. S. Koparal, “Electrochemical Oxidation of Phenol in a Parallel Plate Reactor Using Ruthenium Mixed Metal Oxide Electrode,” Journal of Hazardous Materials B, Vol. 136, 2006, pp. 296-302.
 A. A. Azengil and M. Azacar, “The Decolorization of c.I. Reactive Black 5 in Aqueous Solution by Electrocoagulation Using Sacrificial Iron Electrodes,” Journal of Hazardous Materials, Vol. 161, No. 2-3, 2009, pp. 1369-1376.
 F. Akbal and S. Camc?, “Treatment of Metal Plating Wastewater by Electrocoagulation,” Environmental Progress & Sustainable Energy, 2011, in press.
 G. Chen, “Electrochemical Technologies in Wastewater Treatment,” Separation and Purfication Technology, Vol. 38, 2004, pp. 11-41. doi:10.1016/j.seppur.2003.10.006
 C. Jeon, J. Y. Park and Y. J. Yoo, “Characteristics of Metal Removal Using Carboxylated Alginic Acid,” Water Research, Vol. 36, 2002, pp. 1814-1824.
 J. H. Min and J. G. Hering, “Arsenate Sorption by Fe(iii)-Doped Alginate Gels,” Water Research, Vol. 32, No. 5, 1998, pp. 1544-1552.
 M. A. Zazouli, M. Taghavi and E. Bazrafshan, “Influences of Solution Chemistry on Phenol Removal from Aqueous Environments by Electrocoagulation Process Using Aluminum Electrodes,” Journal of Health Scope, Vol. 1, No. 2, 2012. pp. 65-70. doi:10.5812/jhs.5462